PMF55 series photoelectric sensor is one through beam type with 60m detection distance. The photoelectric sensor Wholesale Price product with A/B frequency option can solve the cross-interference problem when two or more groups of sensors are installed together.

PMF55 series photoelectric sensor is through beam photo sensor ( laser photoelectric sensor)  with 60m detection distance. The photoelectric sensor product with A/B frequency option can solve the cross-interference problem when two or more groups of sensors are installed together. Narrow light beams solve the detection problem on small-size object, Aspheric optical lens eliminate sunlight and stray light interference, CE certificate, Protection rating IP67.

Wholesale price PMF55 photo sensor is one especially for automatic sliding gate or cantilevered sliding gate to guarantee personnel security. It is also known as Anti -Collision IR Sensor, Anti -Climb Photo Cell.  

What is a photoelectric sensor?

A photoelectric sensor consists mainly of a transmitter that emits light and a receiver that receives it. When the emitted light is interrupted or reflected by the sensing object, it changes the amount of light reaching the receiver. The receiver detects this change and converts it to an electrical output. Photoelectric sensors detect objects, changes in surface conditions, and other items through a variety of optical properties. The light source for most photoelectric sensors is infrared or visible light. Photoelectric switch transmitters mostly use semiconductor light-emitting diodes (LEDs) driven by narrow pulse currents at medium frequencies (around 40 kHz) as the light source to emit modulated light pulses. Accordingly, the output signal of the receiving photosensitive element (photo-transistor) is processed by a 40kHz frequency-selective AC amplifier and a special demodulation chip, which can effectively prevent interference from sunlight, and fluorescent lamps, and can reduce the power consumption of the transmitting LED. The photoelectric sensor includes the through beam photoelectric switch, retro-reflective photoelectric sensor, diffuse reflective photoelectric switch, slot photoelectric switch, and optical fiber photoelectric switch.